Valve



C. E. GRUNSKY Sept. 5, 1933.

VALVE Filed Aug. 2o, 195o A T TOREYS.

Patented Sept. 5, 1933 1 I Y irse y STATES. PATENT oli-Fics VALVE Carl Ewald Grunsky, San Francisco, Calif. Application August ,20, 1930. Serial No. 476,467 Y 2 Claims. (C1. 137-139) This invention relates to valves such as are section 6, While the opposite end isr closed by placed in pipe lines or the like to regulate or means of a ring-shaped plate 9 secured between shut off" the flow `of a fluid therethrough, and flanges lo and 11, the iianges andthe plate 9 beespecially to a sleeve type of valve. ing secured together by bolts or other suitable Ilhe object of the present invention is to gen-v means indicated at 12. Flange 1l is formed on 60 erally improve and simplify the=construction and one end of an inlet pipe 13, while iiange 10 is operation of valves of the character described; formed on the forward end ofthe outer housing to provide a valve which may be readily inserted section 7. When the valveis inserted in a pipe in a pipe line; to provide a valve which is adapted lineA to control ovv therein, the housings as `here 10 for high pressure pipe lines; to provide a valve described, will form a part thereof. 65 which may be opened or closed With a minimum Surrounding the inner housing section A and of power, regardless of the pressure in the line; slidably mounted thereon is a cylindrical-shaped to provide a valve which is substantially hydrausleeve valve 15. One end of the valve is prolically balanced so that the amount of power revided with a piston member 15, While the opl5 quired to open or close the valve need not be posits end is provided with a seat 17 which isf70" much in excess of that required to overcome iricadapted to engage a fixed annular seat 18 formed tien between the ymoving parte; to provide a et the rear end of the head member 2. Longitudi- ValVe Whieh may be either hydraulically or inannal movement is transmitted to the piston 16 and ually opened or closed; to rprovide a valve which the sleeve valve by means of a four-Way valve 20 insures a Smooth 110W and e gradual change in or the like, indicated at 19. This valve is eon- 5 the amount of flow of huid both during opening nected byv means of two pipes 20 and 21 with opl and closing of the valve whereby-water hammer posite ends of the cylinder chamber 8, and the or Vibration Gah 'oe eliminated; ilo provide a valve is also provided With asupply pipe 22 and a valve in Which leakage is reduced to a minimum; waste pipe 23. Fluid under pressure may be and, further, to provide meansv exterior of a valve delivered toA pipe 22k from vany suitable source, for S0 whereby the position of the valve Willat all times instance, Lthe pipe line 13, providing this carries be visibly indicated. y the fluid under suiiicient pressure. Hence, when The valve is shown by Way of illustration in Y it is desired to open or close the valve, itis merely the accompanying drawing, in Which-,l necessary to admit uid undery pressure behind one Figl iS a Central, Vertical, longitudinal sectio end or the other oi the piston and release the 85 of the valve, Y I fluid behind the opposite end, and as the piston Fig. 2 iS a detail Section Showing lloW the ValVe moves, sleeve valve 15 will also move and the may be manually opened and Closed, yradial inlet ports 4 will accordingly be opened or Fig. 3 iS a oloSS Seotioll taker! 0h line III-III closed. When moved to closed position, the seat of Fig. 1. members 17 and 18 engage in such a manner as to 90 Referring to JBhe drawing ll detail, and Darprovide a substantially leak-proof seat. To make ioillarly Fla l, A lhdiCaifeS arl ihher Cylihdroalthe valve leak proof the end oi the sleeve farthest Shaped elongated housing, one erld of Whioh iS removed from the ring seat may be provided With closed by means of the cone-shaped head member a Stung box 45,

2. Formed ih the hoileihg A adiaoehi the head The piston 16 is provided with a rod 24 which member 2 and just rearwardly thereof are a projects through the stuiiing box 24:61,.V The outer plurality of symmetrically disposed radial flow inend of the rod carries a pointer 25 and this moves lei? porte l forming openings through the Shell over an indicating scale 26, said pointer and scale of the ihrler housing. The olJlDoSiie end of the visibly indicating at all times the position of the housing A is open, and on the assumption that sleeve valve.

the flow is in the direction from left to right as By referring to Fig. 2, a modified form of Valve shown by arrows` fifi, formsthe discharge end operating mechanism is shown. ln this instance thereof. t iS provided Witll'ah annular outwardly head member 9 may be entirely eliminated 'and in projecting flange 5 and it is secured by bolts or place of employing a piston such as shown at 16,

other suitable meansto the end. 6 of an outer an annular flange may be provided for concylindrical-shaped annular housing 7. This housvenient attachment to the sleeve of one or moreA ing is large in diameter-and an annular circumrods such as shown at 30 extending through ferential chamber 8 is accordingly formed bestuffing boxes 2da.k These rods terminate in rack tween the housings, one end of this circumferenbars 31 and the rack bars are engaged by gears l tial chamber being closed by the flange 5 and end 32 Which may be rotated by a hand crank or any other suitable mechanism. Hence, it is also possible to manually open and close the sleeve valve, if desired. Y

By referring to Figs. l and 3, it will be noted that the radial inlet ports 4 are V-shaped at their forward ends and it will also be noted that a coneshaped head member 40 is placed within the inner housing at a point rearwardly of the cone-shaped head 2. The head 40, together with the V-shaped ports 4, insures a gradually increasing and smooth flow of the water or other medium handled as the Valve opens. It eliminates all eddy or swirling actions at the beginning of an opening and at the iinish of a closing movement and, thereby insures a smooth operating valve in which water hammer or vibration can be entirely eliminated. Leakage can be reduced 'to a minimum due to the engagement cf the annular seat 17 With 18 when the Valve is closed and also due to the fact that the inlet ports 4 are completely covered when the sleeve Valve assumes closed position leaving only the circumferential sliding contact at the rear end of the sleeve to be made tight either by sufciently careful workmanship on the inner housing at the point Where the rear end of the sleeve comes to rest when the Valve is in a closed position, or by providing a stuffing box 45 on that end of the sleeve. Thel amount of power required to operate the sleeve valve will in most instances not exceed that required to overcome the friction of the moving parts, this being particularly true of the structure shown in Fig. With the structure shown in Fig. l a slightly unbalanced condition may exist, but as this type is hydraulically actuated, it is of no material importance as it is only during the closing operation that the slight increase in power is required and this is taken care of by the larger area presented byk the rear face of the piston. Pipe 13 forms a part of the pipe line in Which the Valve is inserted and it ordinarily forms the intake side of the valve. Pipe 42 is a special pipe which in this instance is shown as an extension of the outer housing. It, however, may terminate in a flange such as shown at Ai3 or otherwise, to be joinedtc the pipe line if it is continued. Otherwise, it will form the discharge outlet of the valve.

While certain features of the present invention are more or less specifically described, I wish it understood that the direction of flow may be in claims. Similarly, that the materials and finish of the several parts employed may be such as the manufacturer may decide, or varying conditions or uses may demand.

Having thus described my invention, what I- claim and desire to secure by Letters Patent is- 1. In a valve consisting of an outer cylin-v drical housing and an inner cylin rical housing havingv an annular flow space therebetween, an annular valve seat around the inner housing, said inner housing having radially disposed ports formed therein, a cylindrical valve slidably mounted on the inner housing, means for sliding said Valve on said housing to close said ports, said ports being tapered in shape to eifect a longitudinal contraction of their width to points at their ends nearest to the valve seat, thereby controlling the rate at which the flow area through the ports is increased on opening and is decreased on closing the ports, and causing a gradual increase and reduction in the amount of iiow when the valve is opened or closed, and a suflicient length of the inner housing between the ports and the valve seat to permit the sliding Valve to completely shut oi the ow before itvengages the seat, and guide vanes within the inner housing, arranged to conform to the edges of the ports and forming tapering grooves to pro- Vide gradual transition of flow space from the openings to the full dimensions of the inner housing and to compel smooth flow of the liquid through the valve.

2. 1n a valve of the character described which includes a cylindrical housing having radially disposed ports formed therein, a cylindrical valve slidably mounted on said housing, means for sliding the Valve on the housing to close said portasaid ports being tapered in shape to effect a longitudinal contraction of their width to points at their ends that are last closed by the valve, thereby controlling the rate at Awhich the iiow area through the ports is increased on opening and decreased on clcsing and causing gradual increase and reduction in the amount of flow when the valve is opened and closed, and guide Varies Within the housing arranged to conform to the edges of the ports and forming tapering grooves to provide gradual transition of flow space from the openings tothe full dimensions of the interior of the housing to insure smooth flow of liquid through the valve.

CARL EWALD GRUNSKY. 

